the left atrial appendage should it be closed in every open … a... · 2018. 12. 3. · the left...
TRANSCRIPT
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The Left Atrial Appendage – Should it be Closed in every Open Cardiac Surgical Case
Nirav C Patel MD FRCS CThProfessor – Zucker School of Medicine at Hofstra Northwell
Director of Robotic Cardiac Surgery – Northwell HealthVice Chairman –Cardiovascular and Thoracic Surgery
Lenox Hill Hospital – New York
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Disclosures
• Founding Member HRT- Equity interest
• None regarding this presentation
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Surgical LAAO – Overview
• Success and methods
• Role in stroke prevention
• Current trials
• Guidelines
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LAA exclusion - successful
• No spontaneous echo contrast
• No demonstrable flow on TEE
• Residual stump < 1cm
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Endo-Cardial ligation during mitral surgery• 36% had spontaneous echo contrast
• 22% - thromboembolic event
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LAAOS
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• Suture ligation vs stapler
• 20% appendage tears
• Suture ligation- 45% successful
• Staple exclusion – 72% successful
• Learning curve of 4 cases success rate increased to 87%
• 2.6% pts had periprocedural stroke
LAAOS
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Cleveland Clinic Retrospective TEE study
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Cleveland Clinic Retrospective TEE study
• 40% successful closure
• Excision>Suture Ligation>Staple exclusion
• If LAA is left intact suture and staple gradually cut through overtime
• Surgical excision – no thormbi in incomplete exclusion
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Comparison - LAA elimination techniques
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LAAO- surgical devices
• AtriClip• External clip
• Sustained compression
• tissue growth
• Tigerpaw• Easier to apply
• Recalled due to tears
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AtriClip – Short term results
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AtriClip- long term results
• 3.5+/-0.5 years
• Stable clip, no recurrence and no thrombi
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AtriClip- Minimally invasive
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AtriClip – Minimally invasive
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LAAO- prevention of stroke in Afib
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LAAO- prevention of stroke in Afib
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NOAC vs Warfarin
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LAAO in pts with Afib
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LAAO in pts with Afib
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LAAO in pts with Afib
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LAA closure in patients without AF?
• No prospective evidence
• Can we identify high risk pts
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MAYO Clinic – LAAO analysis
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MAYO Clinic – LAAO analysis
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LAA closure in patients without AF?
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ATLAS - Study
• No documented history of Afib
• CHA2DS2-VASc > 2
• HASBLED >3
• AtriClip exclusion
• CVA and survival
• Healthcare resources
• 2000 pts through 40 sites
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Guidelines
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Conclusions
• No LAAO should not be routinely performed in all cases
• LAAO – should be done in Pts with afib
• AtriClip is most optimal device
• Intraop Echo confirmation is of paramount importance
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